ISRC USUYG1539781
Verified recording
USUYG1539781 is “heartsync” by cat soup,
registered on the CopyrightChains blockchain with CopyrightID
0x35f4dd1451c7cecde0996d2a6ce21dc97f6244552d09eb459d4c6e6c8fde814c and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1539781.
Recording identifiers
- ISRC
- USUYG1539781
- Title
- heartsync
- Artist
- cat soup
- CopyrightID (CopyrightChains transaction hash)
0x35f4dd1451c7cecde0996d2a6ce21dc97f6244552d09eb459d4c6e6c8fde814c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:a3b7a06681e764d063e3956a66dc4998610b12c51710a9fc6faa0e570de78a47- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1539781
- Bitcoin block existence check
- https://blockstream.info/api/block/960291